As a citizen of Sri Lanka I would have suggested the following to the government : -
1. Tamils in Sri Lanka shouldn't be discriminated as it results in riots.
2. Tamils should be given a independent territory out of some part of Sri lanka .
3. Sinhalas should not be favoured in universities and government jobs.
4. There should be equal political rights given to both ethnic groups (Tamils & Sinhalas)